/*
 * Copyright (C) 2019 The Dagger Authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package dagger.example.atm;

import dagger.Binds;
import dagger.BindsOptionalOf;
import dagger.Module;
import dagger.example.atm.Database.Account;
import dagger.multibindings.IntoMap;
import dagger.multibindings.StringKey;

/**
 * Installs basic commands.
 */
@Module
interface CommandsModule {
    @Binds
    @IntoMap
    @StringKey("hello")
    Command helloWorld(HelloWorldCommand command);

    @Binds
    @IntoMap
    @StringKey("login")
    Command login(LoginCommand command);

    /**
     * Declare an optional binding for {@link Account}. This allows other bindings to change their
     * behavior depending on whether an {@link Account} is bound in the current (sub)component.
     */
    @BindsOptionalOf
    Account loggedInAccount();
}
